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2 n e e h s w e h S 2 1 w r. Dm w m Nm m G T o RA AM D L APPARATUS FOR REGLAIMING SODA ASH;

Patented Aug.. 16,.1892.

Wiines5gs;

UNITED STATES PATENT Gimme.

LEWIS D. ARMSTRONG, OF LOOK HAVEN, PENNSYLVANIA; ME YLERT ill. Alilv'l- STRONG, ADMINISTRATOR OF LEWVIS D. ARMSTRONG, DECEASED, AS- SIGNORITOMTHENEW YORK AND PENNSYLVANIA COMPANY, OF PENN- SYLVANI A.

APPARATUS FOR RECLAHVHNG SODA=ASH.

SPECIFICATION forming part of Letters Patent No. 480,702, dated August 16, 1892.

Application filed June 20, 1891. Serial No. 396,886. (No model.)

To all whom it may'concern;

Be it known that I, LEWIS D. ARMSTRONG, ofLock Haven, in the county of Clinton and State of Pennsylvania, have invented an Improvementin Apparatus for Reclaiming Soda- Ash, of which the following is a specification.

My invention relates to apparatus for reclaiming soda-ash; and it consists of certain improvements which are fully, set forth in IQ the following specification and shown in the accompanying drawings, which form a par-t thereof.

The obj ect of my invention is to effectively accomplish the evaporation of liquids from liquors for the purpose of recovering chemicals contained therein, with particular reference to the recovery of soda-ash from 'the spent liquors of pulp-mills, 8m.

My invention relates to. certain improvements in the construction and arrangement of the parts, whereby, greater economy and efficiency are obtained.

My invention also contemplates the employment of the products of combustion from the rotary incinerator for the purpose of generating steam in a steam-boiler, and also the utilizing of those products for the purpose of subjecting the liquor containedin the supplytank to heat before its introduction into the' incinerator. I

My invention includes certain improvements in the rotary incinerator or cylinder for the purpose of imparting rotationto' it, and inthe devices forleading the products 3 5 of combustion to and fromthe rotary cylinder.

In the drawings, Figure 1 is a sectional side elevation of my improved apparatus for reclaiming soda-ash, die. Fig. 2 is a front ele vation, on an enlarged scale, of the. bell 4o mouthpiece with its parts partially detached. Fig. 3 is a vertical sectional view of the same on the line as w of Fig. 2. Fig. 4: is a front elevation of the movable shield located between the fire-box and cylinder. Fig. 5 is a 5 vertical sectional view of the rotary cylinder on the line y-y of Fig. 1. Fig. 6 is a perspec- Q tive view of a portion of the driving-ring of the cylinder on an enlarged scale. Fig-=7 is a plan viewof the rim thereof, and Fig.' 8 is a plan view of a portion of the driving-ring.

A is a rotary incinerator, which may be constructed in the usual manner of sheet metal with an interior lining ct of fire-brick.

. C O are metallic rings upon the exterior of the rotary incinerator. These rings 0 O are 5 5 supported upon the driving-Wheels B B. The Wheels B B are driven in any convenient well-known manner, and the rotary incinerator A is rotated by the friction between the rings 0 C and the driving-wheels B, thus ob- 6o viating the employment of the usual gearing. These rings 0 O are preferably constructed 'of integral rings 0', bolted to the metal shell 0% the cylinder and provided with a steel rim 0'. bolted to the metal ring 0 by counter-sunk bolts 0, which extend through slots 1) in the ring 0' and are fastened therein by'pins d, inserted through lateral slots 0' in the rinrC into the bolts 0.

By the construction of the rings 0 O with a cast-iron bodyG and steel ri-m great economy and efliciency are obtained. By reason of the great weight of the cylinder A the rim of these driving-rings becomes greatly worn, 75 rendering it necessary to renew the rings. .l/Vith this construction, however, the rims only need be renewed, and the body portion may be formed of cast-iron, with the rim only of steel. rings 0 C during the rotation of the cylinder tends to move the rim upon its body 0, and

this action is liable to cut off the heads of the bolts and thus loosen the rim. To obviate this I form the body-portion with slots 1) for 85,

the bolts 0, and fasten them by the pins'd through the lateral slotsv c. The bolts 0 are thus free to play slightly in the slots 1) without resisting the tendency of the rim C to move upon the body (3 of the ring under the 9 i cyl- This steel rim C is formed in sections The great friction upon the rim of the 8o of the heat between the fire-box and cylinder. This shield E isformcd with an open ing or passage-way e for the heat, into which the neck of the fire-box D may project slightly, as is shown in Fig. 1. The shield E is formed of metal rim F, with an interior of fire-brick G. For cheapness of construction the outer rim F may be constructed. of two pieces of angle-iron ff, bolted together. The shield E may be raised from the open end of the incinerator A in the usual manner.

II is a guide-supporting piece for properly centering the shield E when it is lowered before the incinerator.

.I is a metallic mouthpiece carried by the open end of the cylinder AL J is the boiler-setting having the coinbus tion-chamber J and the flue K leading therer from to the forward end of the rotary incinerator. L is a steam-boiler located in the setting J.

M is a liquor-tank to contain the liquor which is to be treated, located above the boiler, so that the products ofcombustion, after passing from the incinerator or cylinder through the fines of the boiler, may pass out under the tank M. The upper part of the boiler may be protected from the heat by a covering or protecting-wall k, which thus forms a flue or passage-wayl for the products of combustion leading under the tank M.

N is a bell-month arranged about the opening of the iiueK-and projectinginto theopening of the cylinder A. For the purpose of niakingl this bell-mouthpiece with a timing end projecting into the cylinder I prefer to employ the construction shown. (See more particularly Figs. 2 and 3.)

N are a series of segmental flaring or hellshaped sections, which are adapted,when put together, to form a flaring or bell mouth.

' These segments are provided with lugs n upon their exterior surfaces.

O are a series of segmental plates adapted to be bolted together and to the wall adjacent to the flue J. The segments 0 are also provided with lugs o. The segments N are bolted to the segments 0 by means of bolts passing through these lugs o and n, as is shown in Fig. 2, forming the complete bell-mouthpiece N, the plates .0 of which are secured to the wall about the opening of the flue K, as has been heretofore described. For the purpose of enabling this flaring or bell mouthpiece to be easily taken apart and. removed from the neck of the rotary cylinder the seg ments are so divided that one or more of them is free to be withdrawn from the adjacent segments when the lugs o and n are dis connected, as is shown at g g in Fig. 2. All of the segments N may then be removed.

P is a liquor-supply pipe from the tank M, by which the liquor is fed to a funnel Q, and thence it is intrr .luced into the rotary cylinder A through the. mouthpiece N by a pipe R.

The operation of the apparatus is as follows: The liquor in the tank M,being heated cylinder A, ,where it is incinerated. The ash is drawn out of the cylinder A through the opening adjacent to the fire-box when the shield E is raised. Th'e'products of combustion pass through the'cylinder A, and thence out through the flue K into the combustionchamber J, whence they pass through the flues of the boiler and out through the 'pas sage-way l. The same products of combustion are thus utilized for incineration iirth'e cylinder A forgenerating, steam in the boiler L and for heating the liquor in the tank M. The shield F and bell-mouthpiece N serve to efiectually exclude the air from passing into the incinerator between it and the fire-box,

than from the incinerator. By this means a .much greater heatis obtained for generating steam in the boiler L and for heating theliqnor in the tank M.

While I prefer. the minor details of construction which have been shown, I do not limit myself to them, as it is apparent that they may be varied without departing from the invention. U 1

What I claim as new, and desire to secure by Letters Patent, is-

1. A rotary incinerator having one or more drivin g-rin gs about its outer surface, provided with a separate rim fastened thereto with I slight freedom of circular movement upon the body of said ring.

2. A rotary incinerator having a metal driving-ring 0, consisting of the body portion 0, fastened to the outersurface of the incinerator and provided with slots 12 in its upper surface and the lateral slots 0' in its sides, the

rim 0, the bolts 0, passing through the rim 0 into the slots 1), and the pins d, passing through the lateral slots 0' into the bolts 0.

3. In apparatus for reclaiming soda-ash, the combination, with a rotary incinerating-furnace, of a stationary outwardly-flaring mouthpieceprojecting into the, rotary incinerator and having its diameter within the incinerator larger than the diameter of the'opening thereof through which it projects.

4. The combination, with a rotary incinerator, of a stationary flue adjacent to the neck thereof and an outwardly-flaring bell-mouthpiece about said stationary flue, projecting into said incinerator and formed in segments.

IIO

5. The combination of a rotary incinerator,

-E, having a central opening e, arranged between theFfi're-box and mouthpiece I.

7. In an apparatus for reclaiming soda-ash, central opening and "arranged between the the combination of astationary part having fire-box incinerator. 10 an outlet-fine, a rotary incinerator, a mouth- In'testimony of which invention Ihaveherepiece carried by said stationary part about unto set my hand.

the flue and projecting into the rotary incin- LEWIS D. ARMSTRONG. orator, an outwardly-projecting mouthpiece Witnesses: carried by the oppositeend of the rotary in- R. F. HUDSON,

cin'erator, a fire-box, and a shield having a H. A. BARNETT. 

